Instruction Manual

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4.A.2: System history display logged data mode (“SH”)
You can access this data most conveniently using a “Windows” computer with the
PentaMetric PMComm software. See below in this section.
However the “Display unit” in this mode can also be used to access this data. Refer to
figure 3 for a summary of how to navigate in this mode. The purpose of this display is to show
the periodic “logged data” (such as watt hours, amp hours, temperature) as described in section
6.C.1. When this mode is entered, the “OTHER DISPLAYS” lamp will light, and you will observe
that “SH: “ is shown as the first two letters in the top line of the LCD display. . When in this mode
you will note that lights near some switches will occasionally blink. This is to remind you which
switches are relevant and active for this particular mode. Observe that for this mode the 4 “arrow”
switches will blink. If you have just entered this mode (assuming some data has been collected)
the bottom line of the display will show a time and date number that will indicate the time that the
data was collected. The “date number” counts days with reference to the “date” that was originally
programmed using program P38. This “date” number increases by one for each passing day,
starting from whatever number was originally programmed. The top line shows the “measurement
number”, beginning with -1. Going back in time, by pushing the left arrow, changes this to -2, -
3, etc., indicating previous measurements. As you do this the times and/or date number will
decrease. Pushing the right arrow key reverses the left arrow, and goes forward in time. Now,
having noted a time and date whose data you would like to observe, push the “up” arrow key to
view the first datum for that date/time. (For example: Amp-hr 2. =25.3) Each push of the up
arrow will display another datum for that date/time, up to as many as the system has been
programmed to record. Pushing the down arrow key, of course goes back down through the same
data until you get back to the “date/time” screen, after which the down arrow will have no effect.
Pushing the “OTHER DISPLAYS” button will exit this mode.
For information on how to set up this function to record what and when you want, see section 6.C.1
“Periodic data functions”
Computer access: You can get this data much more easily, and in much more presentable form
by using the computer interface. When you give the command to “download data” it will put all of
this information into a file called PM_(Date)_PeriodicData.csv. “Date” here is the date of the
download. If you open this file using Microsoft Excel it will show all the data in tabular form.
4.A.3:Battery discharge profile logged data mode (“BH”)
The purpose of this mode is to display the “Battery Discharge Profile Logged data” which is
more fully described in section 6.C.2.
This data can be most conveniently viewed using the computer interface. This is described
in Section 6.C.2. However it can also be viewed using the Display Unit as described here.
This data is intended to show if your battery bank may be getting low on capacity (“capacity” is how
much total charge the battery bank can hold, in amp-hours) To do this it regularly records the
filtered battery “volts” and “amps” as the battery discharges, (and charges) whenever the “battery
% full” display (AD22 or AD23 ) decreases (or increases) by an additional 5% (or 10%) state of
charge. When this mode is entered you will observe that “BH:” is shown as the first two letters in
the top line of the display. Note that the lamps by the right and left arrow switches will occasionally
blink, indicating that these switches will now influence the display.
Refer to figure 3 for a summary of switch functions for this mode. Assuming that such data
has been set up to be recorded, (see Section 6.C.2) and the PentaMetric has run long enough to
collect at least one data point, pushing the left arrow button will allow you to view the data
going back in time--the right arrow goes forward. The display shows the %full amount, the volts
and the amps. (Note that if you are collecting data for two battery banks, data for the two banks
will be intermixed.) As an example, suppose the battery is fully charged. As you push the left
arrow switch you can trace back in time and look at the battery amps and volts when the battery
was 95%, 90%, 85% charged, until you go as low as the battery was previously discharged. Since
these first few points represent a time when the battery was generally being charged, you would
expect the “amps” values to usually be positive. Eventually you will get to the lowest discharge
point. Going back further will show the numbers typically going up again--and since you are going
backwards in time this is tracing the time the battery was being discharged, the “amps” values will